Notebook computer accessory



FIG. 1 is a perspective view of a notebook computer accessory showing our new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is a perspective view thereof, shown with environment.

The dashed broken lines in FIG. 9 is for the purpose of depicting environment and form no part of the claimed design. 

CLAIM The ornamental design for a notebook computer accessory, as shown and described. 